87711087 has 12 divisors (see below), whose sum is σ = 123428760. Its totient is φ = 55395792.

The previous prime is 87711077. The next prime is 87711097. The reversal of 87711087 is 78011778.

It is an interprime number because it is at equal distance from previous prime (87711077) and next prime (87711097).

It is not a de Polignac number, because 87711087 - 2⁶ = 87711023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87711037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39412 + ... + 41577.

It is an arithmetic number, because the mean of its divisors is an integer number (10285730).

Almost surely, 2^87711087 is an apocalyptic number.

87711087 is a deficient number, since it is larger than the sum of its proper divisors (35717673).

87711087 is a wasteful number, since it uses less digits than its factorization.

87711087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81030 (or 81011 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 39.

The square root of 87711087 is about 9365.4197449981. The cubic root of 87711087 is about 444.3087141619.

The spelling of 87711087 in words is "eighty-seven million, seven hundred eleven thousand, eighty-seven".